3.14 Power Failure Connections
Using BRI Card
LINE 1 and LINE 2 of the BRI4 and BRI8 cards can be used for Power Failure Connections.
Note
When the power returns, the connection will switch back to normal configuration from the Power Failure Connection, and a trunk conversation established during power failure will be dropped.
RJ45 (LINE 2)
To ISDN extension
To NT1
RJ45 (LINE 1)
Set all DIP switches at "ON" positions.
OFF | OFF |
ON | ON |
Accessories and User-supplied Items
Accessories (included): none
Switch Settings
Switch | Type | Usage and Status Definition |
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PFT Setting | DIP | Set all DIP switches to "ON" positions to use LINE 1 and LINE 2 as |
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| LINE 1: Power Failure LINE (NT1) |
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| LINE 2: Power Failure EXTN (extension) |
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RJ45 Connector LINE 1 Pin Assignments
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| 8 | Reserved | – | – | ||
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| 3 | TX1 | (+) | Transmit data 1 | ||
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| 1 | 4 | RX2 | (+) | Receive data 2 |
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| 5 | RX1 | Receive data 1 | |
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| 6 | TX2 | Transmit data 2 | |
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| Reserved | – | – | |
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